Clutch and brake mechanism.



M. AXILBOD.

CLUTCH AND BRAKE MECHANISM. APPLlcATloN FILED 1AN.18,19116.

1,18Q385. l Patented June 27, 1916.

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CLUTCH AND BRAKE MECHANISM.

To all whom it may concern Be it known that I, MEYER lAXILROD, a

citizen of the United States, residing in the city and' county of NewYork, State of New York, have invented certain new and usefulImprovements in Clutch and Brake Mechanism, of which thel following is aspecification. f y f My invention has for one object to provide a clutchactuating lever having anarm projecting .therefrom and rigidly securedthereto for supporting a brake device for acting upon a drivingmechanism.

kA further object of my, invention is vto provide means for adjustingthe said brake device to different `positions whereby it may be placedin position to properly act upon the driving device even though theposition Yof the latter may be changed relatively to other portions ofthe vapparatus of which it may form a part.

In the drawings I have shown my invention as employed in connection withmechanism for driving one or more sewing machines although it will beunderstood that it may 4be employed in connection with other kinds ofmachines and for other purposes.

In the accompanying drawings I have shown convenient forms of embodimentof my invention but it will be understood that the same is susceptibleof being embodied in pivoted at 23 upon the lower end of a pro-l jection24 which, in the construction shown, is integral lwith the `dependingbracket 12.

other forms of construction within the scope of the claims and that myinvention is not limited to the details of construction as tion taken onvthe line 3-3 of Fig. '2; Fig.- 4 is a view looking toward the left inFig. 1

and showing in end elevation 'a portion of the apparatus illustrated insaid figure including the means tor adjustably supporting the drivingshaft; Figa() is a view partly in vertical section and partly in sideelevation showing a modified construction of apparatus embodying' myinvention; an Fig. 6 is a transverse sectional view taken on the line6-6 .of Fig. 5.

In the drawings, 1 designates. the table of Specification of LettersPatent. l Patented June 27, 1916.

Application led January 18 1916. Serial No. 72,674, l v

a sewing machine, and 3 the driving shaft `b y which said machine andalso such additional machines as may be connected therethe laterallyextending portion 410 at the lower end of the bracket 12 which issecured to the under sidev of the -table 1. The adjustable rod or bar9,1nay be secured in adjusted position by means of the binding i screwbolt 13. By.V adjusting the screw bolts 6 and 7 it is apparent that thebearing 4 may be adjusted laterally. It is also apparent that the saidbearing may be .ad-

justed vertically by moving the rod or bar 9 up or down. f

The clutch vmember 20 is secured to the shaft 3. The driving wheel 21 isslidably mounted upon said shaft and is adapted to vbe moved intocontact with the. opposing frictional surface of the clutch member 20whereby when the said driving wheel 21 is moved into position against.the said clutch member 20 it is caused to rotate therewith.

22 designates a clutch lever which is wardly projectingarm 25 having asemicircular oisety portion 26 which encircles .one side of a sleeve 27loosely mounted upon an extension of the hub 28 of the driving wheel 21.

29 designates projections formed upon the said arm 25 which projectionsengage notches 30 in the ring 27. Itmaybe noted that the said ring isheld in position upon the extension of the hub 28 by Ameans of a collar31 secured, .by means of a binding screw 32, upon the 'outer endof saideXtension.

For the purpose of operating the said lever 22` Il have provided' atreadle'35 connected with the outer end of the said lever by means of arod 36. The outer end tofsaid lever is held in its uppermost position by5 means of a coiled wire spring 37 which is attached at one end to thesaid lever and at its other to a `xed projection 38 extending laterallyfrom the downwardly extending projection Vor bracket 24. By reason ofthe l engagement of the projection 29 Withkthe notches 30 in the sleeve27 it is apparent that the latter is heldv against rotation'notwithstanding the rotation of the driving wheel 21. 40 designates anarm extending from the I lever 22, said arm extending over and beingpositioned a distance above the driving s wheel 2l. It is provided witha slot"41 in which is adjustably secured by means of a Yfastening bolt42 a support 43 for a brake i0 44. The support 43 is also slotted asindicated at 45. It is apparent, therefore, that the brake support 43and the brake carried thereby may becadjusted either toward the right orthe left (having reference to Figs.

5 1 and 2) and also vertically,jthat is to say, transversely of the arm40.v It is found in .practice that the clutch member and the drivingwheel 21 may be situated in ydifferentpositions upon the shaft 3. Insuch cases !0 it is necessary that the brake for coperating with andacting upon the driving wheel should be correspondingly adjusted. nIt isfor that reason that the slot'inthe arm 40 is provided.

2-5 In adjusting the shaft 3 the same may be also raised or lowered bythe adjustment of the rod or bar 9.' In such case it is necessary thatthe vbrake be correspondingly adjusted and .it is for that reason that Ihave 40 provided the slot 45 in th 43. It is apparent, therefore, that Ihave provided meansv whereby even though the.

vlclutch member and the driving wheel may be elther raised or loweredorlaced in dif- 15 ferent positions upon the sha t 3 the brake may becorrespondingly adjusted so as to placel the parts in proper operativerelation with respect to each other.

' For the purpose of driving the'sew'ing ,machine mechanism from thedriving shaft 2l may be of a length either to operate in the groove51'or 52-in the drivingwheel.

' For the purpose of lubricating the surfaces betweenu the sleeve 27 andthe extension of the hub 2 8 I 'haveprovided a lubricant cup 53 vintowhich a lubricant may be placed for lubricating the said surfaces. a InFigs. 5 and 6' I have shown a slightly modified construction in whichthe lower end `of the arm 54 depending from the lever 22 is bifurcatedas indicated'at 55 which bivfurcations are positioned 1011 oppositesides of the driving shaft e brake support 3 and are adapted to ysaiddriving wheel into and out of engagement with said clutch member saidlever having an arm extending therefrom trans-4 versely yof the planesof said clutch and driving wheel and in proximity to theperipheriesthereof, a brake, a brake support, and means/whereby saidsupport may be adjust- 8o ed both longitudinally and transversely ofsaid arm, said brake being adapted to be automatically releasedffrom thesaid driving wheel as the latter is moved into en. gagementtwith thesaid clutch member. 8S 2,-In combination, a clutch member, adrivingwheel situated in operative relation thereto, a pivoted lever havingmeans for causing relative movement between said ldriving wheel and thesaid clutch member 9o to cause engagement of the said wheel and the saidclutch member, an arm extending from Vsaid lever transversely of saiddrive ing wheel)'and clutch member and being situated a distance fromthe peripheries 95V thereof, saidv arm being provided with a slot, abrake, a support for said brake, and

' means extending through said slot and bei ing adapted to be adjustablypositioned therein for securin and holding the said brake Jsupport indlfferent positions in re- .Spect of'said arm and with relation to theperipheries of the said driving fwheel and clutch member. t

3.. In combination, a driving shaft, a clutch member secured. to saidshaft, a driving wheel slidablysupported upon said shaft, a leverpivoted intermediate its ends one portion of Whichis .operativelyconnected with the said driving wheel, means for operating the saidlever to cause movement of'said driving wheel into engagement withthesaid clutch member, an arm projecting from said lever transversely ofsaid driving I have provided a driving band 50 which 'i wheel and saidclutch nmember, said arm being provided with an elongated slot, a brake.support also provided with an elongated slot; meansl extending throughsaid` slots for adjustably connecting the said support to sai arm,substantially as and for the purpose described. f

4. In combination, a driving shaft, means clutch member and a drivingwheel on said Shaft, means for causing relatlve movement between saiddriving wheel and said clutch member whereby said driving Wheel andclutch member-may be moved into and out of engagement, a brake forengaging said driving Wheel, a support for said brake, and

means for adjustably supporting the said brake support whereby thelatter may be adjusted lto correspond ywith adjustments of said shaft.

In testimony that I claim the foregoing 1'0 as my invention, I havehereunto signed my name this 17th day of January, A. D. 1916.

-\,MEYER AXILROD.

